Which of the Following Statements with Regard to Human Rights

Which of the following statements with regard to human rights is correct?

A) There is no universal agreement on the exact meaning of the term human rights.
B) Historically, liberal democracies in the West have been exclusively concerned with economic rights.
C) One of the great breakthroughs of the twenty-first century is the development of a powerful international legal enforcement mechanism to make countries alter their human rights behavior.
D) None of these is correct.